Last Updated: Jul 16,2010
Mine is like the only name that shows my last name's initial.. heh.. w/htf do I change that?
Go to 'My Account' in the google home page. (On desktop, make sure you're logged in). You should see a link on the left saying 'edit your personal info'. Click that and on the page where it says 'First Name' and 'Last Name', there should be a box for 'nickname'. Put whatever name you want in there, and that will show up in Marketplace.
Separate names with a comma.